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12028400774 = 213538728883
BaseRepresentation
bin10110011001111001…
…01101010010000110
31011001021120001212222
423030330231102012
5144113232311044
65305322212342
7604034501555
oct131474552206
934037501788
1012028400774
11511279a595
1223b83540b2
131198cc9910
148216d1d9c
154a5ed08ee
hex2ccf2d486

12028400774 has 16 divisors (see below), whose sum is σ = 19797108912. Its totient is φ = 5446822368.

The previous prime is 12028400771. The next prime is 12028400801. The reversal of 12028400774 is 47700482021.

It is a happy number.

12028400774 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12028400771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4363064 + ... + 4365819.

It is an arithmetic number, because the mean of its divisors is an integer number (1237319307).

Almost surely, 212028400774 is an apocalyptic number.

12028400774 is a deficient number, since it is larger than the sum of its proper divisors (7768708138).

12028400774 is a wasteful number, since it uses less digits than its factorization.

12028400774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8728951.

The product of its (nonzero) digits is 25088, while the sum is 35.

Adding to 12028400774 its reverse (47700482021), we get a palindrome (59728882795).

The spelling of 12028400774 in words is "twelve billion, twenty-eight million, four hundred thousand, seven hundred seventy-four".

Divisors: 1 2 13 26 53 106 689 1378 8728883 17457766 113475479 226950958 462630799 925261598 6014200387 12028400774